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Francis turbine or Francis pump or Francis pump turbine
Francis turbine or Francis pump or Francis pump turbine
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机译:弗朗西斯水轮机或弗朗西斯水泵或弗朗西斯水泵水轮机
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摘要
The invention relates to a Francis turbine or other, based on the Francis principle machine; With an impeller having blades; - With a spiral housing, which encloses the impeller; - with a truss ring, comprising a number of trusses; - With an inner vane ring with larger trusses, which is connected downstream of the truss ring. The invention is characterized by the following features: an outer vane ring is provided, which is connected upstream of the truss ring.
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